Signal molecules as biomarkers of prediction of the premature rupture of membranes (clinicodiagnostic aspects)

One of the most commonly encountered pregnancy complications is the premature rupture of membranes. This pathology results in the increase of frequency of operative delivery, birth traumatism and neonatal complications. The purpose of the research described was verification of key signal molecules, providing integrity of fetal membranes, with subsequent development of possible biomarkers of non-invasive prediction of the premature rupture of membranes. This work presents the comparison studies of expression of VEGF, MMP-9, connexin 37, connexin 40, endorphins, enkephalins, actin, miosin in a buccal epithelium and fetal membranes for 70 patients of the basic group (with premature rupture of membranes) and for 70 patients of the control group (with timely rupture of membranes). Research of fetal membranes and buccal epithelium was carried out by means of primary monoclonal mouse antibodies to the investigated markers. The universal basis set was used as the secondary antibodies, containing of biotinylated anti-mouse immunoproteins. The study of the preparations was carried out in the confocal microscope OLYMPUS FLUOVIEW FV 1000 at the image enlargement of ×400 and ×1000 with use of the system MRC-1024, with the software suite for computer processing OLYMPUS FLUOVIEW 5.0. Statistical processing of the material was carried out with the application of the standard statistical software suite Statistica 10.0. Obtained in a group with the premature rupture of membranes and in a control group were the reliable differences of expression of MMP-9, VEGF, connexin 37 and connexin 40 were. The multifactorial analysis of the indices of expression of signal molecules allowed to discover the high information significance for premature rupture of membranes prediction, matrix metalloproteinase ММP-9, connexin 37 and connexin 40, as well as VEGF. Matrix metalloproteinase ММP-9, connexin 37 and connexin 40, VEGF can be considered as non-invasive markers of premature rupture of membranes prediction.